mirror of
https://github.com/OPM/opm-simulators.git
synced 2025-01-11 00:41:56 -06:00
df0fdbbd0b
`cudaThreadExit` has been deprecated in favour of `cudaDeviceReset`, which is already being called.
50 lines
1.9 KiB
C++
50 lines
1.9 KiB
C++
/*
|
|
Copyright 2022-2023 SINTEF AS
|
|
|
|
This file is part of the Open Porous Media project (OPM).
|
|
|
|
OPM is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
OPM is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with OPM. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <config.h>
|
|
#include <cuda_runtime.h>
|
|
#include <opm/common/OpmLog/OpmLog.hpp>
|
|
#include <opm/simulators/linalg/cuistl/detail/cuda_safe_call.hpp>
|
|
#include <opm/simulators/linalg/cuistl/set_device.hpp>
|
|
namespace Opm::cuistl
|
|
{
|
|
void
|
|
setDevice(int mpiRank, [[maybe_unused]] int numberOfMpiRanks)
|
|
{
|
|
|
|
int deviceCount = -1;
|
|
cudaGetDeviceCount(&deviceCount);
|
|
|
|
if (deviceCount <= 0) {
|
|
// If they have CUDA enabled (ie. using a component that needs CUDA, eg. cubicgstab or CUILU0), this will fail
|
|
// later down the line. At this point in the simulator, we can not determine if CUDA is enabled, so we can only
|
|
// issue a warning.
|
|
OpmLog::warning("Could not find any CUDA devices.");
|
|
return;
|
|
}
|
|
|
|
// Now do a round robin kind of assignment
|
|
// TODO: We need to be more sophistacted here. We have no guarantee this will pick the correct device.
|
|
const auto deviceId = mpiRank % deviceCount;
|
|
OPM_CUDA_SAFE_CALL(cudaDeviceReset());
|
|
OPM_CUDA_SAFE_CALL(cudaSetDevice(deviceId));
|
|
OpmLog::info("Set CUDA device to " + std::to_string(deviceId) + " (out of " + std::to_string(deviceCount)
|
|
+ " devices).");
|
|
}
|
|
} // namespace Opm::cuistl
|